// $Id: ArtistValidator.java 61 2006-08-04 12:13:50Z huijzer $

/*    
	Aoide is a web-based music catalog using the Spring Framework.
	Copyright (C) 2006  Arjan Huijzer

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
    
    You can contact Arjan Huijzer by sending an e-mail to huijzer@gmail.com.
*/

package org.aoide.web.validator;

import org.aoide.persistence.Artist;
import org.apache.commons.lang.StringUtils;
import org.springframework.validation.Errors;
import org.springframework.validation.Validator;

public class ArtistValidator implements Validator {

	public boolean supports(Class clazz) {
		return Artist.class.isAssignableFrom(clazz);
	}

	public void validate(Object command, Errors errors) {
		Artist a = (Artist) command;
		String name = a.getName();
		
		if (StringUtils.isBlank(name)) {
			errors.rejectValue("name", "errors.required", new String[]{"Name"}, null);
		}
		
	}

}
